Kang Wong, 84, who claims he was assaulted by police for jaywalking, describes his injuries.AP

The son of a frail, 84-year-old man — bloodied by cops after he jaywalked on the Upper West Side and didn’t understand police officers’ orders to stop — called the ordeal a nightmare outside a Manhattan courthouse Wednesday and urged the Manhattan district attorney to drop the charges still pending against his dad.

“This whole ordeal for our family has been a nightmare,” said accountant Wei Wong, whose father, Kang Wong, had a brief appearance in Manhattan Criminal Court, accompanied by at least 40 community supporters. “My father isn’t a criminal, he is the victim here.”

He added, “We are disappointed the charges were not dropped today and hope the DA will drop them soon.”

Kang Wong outside court today.Steven Hirsch

The elder Wong, who doesn’t speak English, allegedly crossed against the light at the intersection of Broadway and 96th Street on Jan. 19.

An officer ordered the octogenarian to halt and tried to write him a ticket when he began walking away.

The cop tried to pull Wong back and when he resisted, several officers descended on the frail man, leaving him bleeding with cuts on his face.